Facebook SDK v4 for PHP Minimal Example

by

have recently solved this.
as there is autoload.php file available with sdk you dont need to use require etc etc.
just include that autoload.php on the start

 <?php
session_start();
// added in v4.0.0
require_once 'autoload.php';

use Facebook\FacebookSession;
use Facebook\FacebookRedirectLoginHelper;
use Facebook\FacebookRequest;
use Facebook\FacebookResponse;
use Facebook\FacebookSDKException;
use Facebook\FacebookRequestException;
use Facebook\FacebookAuthorizationException;
use Facebook\GraphObject;
use Facebook\Entities\AccessToken;
use Facebook\HttpClients\FacebookCurlHttpClient;
use Facebook\HttpClients\FacebookHttpable;

// start session

// init app with app id and secret
FacebookSession::setDefaultApplication( 'app-id','app-secret' );

// login helper with redirect_uri

    $helper = new FacebookRedirectLoginHelper('http://yourhost/facebook/' );

try {
  $session = $helper->getSessionFromRedirect();
} catch( FacebookRequestException $ex ) {
  // When Facebook returns an error
} catch( Exception $ex ) {
  // When validation fails or other local issues
}

// see if we have a session
if ( isset( $session ) ) {
  // graph api request for user data
  $request = new FacebookRequest( $session, 'GET', '/me' );
  $response = $request->execute();
  // get response
  $graphObject = $response->getGraphObject();

  // print data
  echo '<pre>' . print_r( $graphObject, 1 ) . '</pre>';
} else {
  // show login url
  echo '<a href="' . $helper->getLoginUrl() . '">Login</a>';
}

?>

after this you must have to check the path in autoload.php file

$base_dir = defined('FACEBOOK_SDK_V4_SRC_DIR') ? FACEBOOK_SDK_V4_SRC_DIR : __DIR__ . '/src/Facebook/';

this line is default code if u have changed the name of directories like placed all the files from /src/Facebook/ to /sdk/ then just replace the name
always check the included path by using die(__DIR__ . '/src/Facebook/');
to make sure if it is correct.

More Related Contents:

  1. What does a \ (backslash) do in PHP (5.3+)?
  2. Parse XML with Namespace using SimpleXML [duplicate]
  3. What are namespaces?
  4. PHP library for parsing XML with a colons in tag names? [duplicate]
  5. parse an XML with SimpleXML which has multiple namespaces [duplicate]
  6. PHP namespace simplexml problems
  7. Can PHP namespaces contain variables?
  8. How to use objects from other namespaces and how to import namespaces in PHP
  9. Unexpected character in input: ‘\’ (ASCII=92) state=1
  10. Autoloading classes in PHPUnit using Composer and autoload.php
  11. PHP how to import all classes from another namespace
  12. Namespace in PHP CodeIgniter Framework
  13. Using namespaces with classes created from a variable
  14. How to get all class names inside a particular namespace?
  15. PHP namespace with Dynamic class name
  16. How to use “root” namespace of php?
  17. SimpleXML: Working with XML containing namespaces
  18. How to use composer packages in codeigniter?
  19. PHP namespaces and “use”
  20. Use php namespace inside function
  21. PHP adding custom namespace using autoloader from composer
  22. SimpleXML SOAP response Namespace issues
  23. How to get attribute of node with namespace using SimpleXML? [closed]
  24. Troubleshooting “The use statement with non-compound name … has no effect”
  25. Class ‘App\Http\Controllers\DB’ not found and I also cannot use a new Model
  26. Using namespaces in Laravel 4
  27. PHP namespace PDO not found
  28. unexpected ‘use’ (T_USE) when trying to use composer
  29. Get the first element of an array
  30. How can I truncate a string to the first 20 words in PHP?

Leave a Comment